Sound level meter



FIG. 1 is a perspective view of a sound level meter showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The portions of the Figures shown in broken lines are shown for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a sound level meter, as shown and described. 